<template>
  <div class ="header">
    <div class="content-wrapper">
      <div class="avatar">
        <img width="64" height="64" :src="seller.avatar" />
      </div>
      <div class="content">
        <div class="title">
          <span class="brand"></span>
          <span class="name">{{seller.name}}</span>
        </div>
        <div class="description">
          {{seller.description}}/{{seller.deliveryTime}}分钟送达
        </div>
        <div class="support" v-if="seller.supports">
          <span class="icon" :class="classMap[seller.supports[0].type]"></span>
          <span class="text">{{seller.supports[0].description}}</span>
        </div>
      </div>
      <div v-if="seller.supports" class="support-count" @click="showDetail">
        <span class="count">{{seller.supports.length}}个</span>
        <span class="icon-keyboard_arrow_right"></span>
      </div>
    </div>
    <div class="bulletin-wrapper" @click="showDetail">
      <span class="bulletin-title"></span><span class="bulletin-text">{{seller.bulletin}}</span>
      <span class="icon-keyboard_arrow_right"></span>
    </div>
    <div class="background">
      <img width="100%" height="100%" :src="seller.avatar" />
    </div>
    <transition name="fade">
      <div v-show="detailShow" class="detail">
        <div class="detail-wrapper clearfix">
          <div class="detail-main">
            <h1 class="name">{{seller.name}}</h1>
            <div class="star-wrapper">
              <star :size="48" :score="seller.score"></star>
            </div>
            <div class="title">
              <div class="line"></div>
              <div class="text">优惠信息</div>
              <div class="line"></div>
            </div>
            <ul v-if="seller.supports" class="supports">
              <li class="support-item" v-for="(item, index) of seller.supports" :key="index">
                <span class="icon" :class="classMap[seller.supports[index].type]"></span>
                <span class="text">{{seller.supports[index].description}}</span>
              </li>
            </ul>
            <div class="title">
              <div class="line"></div>
              <div class="text">商家公告</div>
              <div class="line"></div>
            </div>
            <div class="bulletin">
              <p class="content">{{seller.bulletin}}</p>
            </div>
          </div>
        </div>
        <div class="detail-close" @click="closeDetail">
          <span class="icon-close"></span>
        </div>
      </div>
    </transition>
  </div>
</template>

<script type="text/ecmascript-6">
import Star from '../star/star'

export default {
  name: 'Header',
  data () {
    return {
      classMap: [],
      detailShow: false
    }
  },
  props: {
    seller: {
      type: Object
    }
  },
  components: {
    Star
  },
  methods: {
    showDetail () {
      this.detailShow = true
    },
    closeDetail () {
      this.detailShow = false
    }
  },
  created () {
    // 如果不需要观测变化，可以不在data中注册，data中的数据都会添加getter和setter
    this.classMap = ['decrease', 'discount', 'special', 'invoice', 'guarantee']
  }
}
</script>

<style lang="stylus" rel="stylesheet/stylus" scoped>
@import '~@/common/stylus/mixin.styl'

.fade-enter-active, .fade-leave-active
  transition: opacity .5s
.fade-enter, .fade-leave-to
  opacity: 0
  background: rgba(7, 17, 27, 0)
.header
  overflow: hidden
  position: relative
  background-color: rgba(7, 17, 27, .5)
  color: rgb(255, 255, 255)
  .content-wrapper
    position: relative
    padding: 24px 12px 18px 24px
    font-size: 0
    .avatar
      display: inline-block
      img
        border-radius: 2px
    .content
      display: inline-block
      vertical-align: top
      margin-left: 16px
      .title
        margin: 2px 0 8px 0
        .brand
          display: inline-block
          width: 30px
          height: 18px
          bg-image('brand')
          background-size: 30px 18px
          background-repeat: no-repeat
        .name
          vertical-align: top
          margin-left: 6px
          font-size: 16px
          font-weight: bold
          line-height: 18px
      .description
        font-size: 12px
        line-height: 12px
        margin-bottom: 10px
      .support
        .icon
          display: inline-block
          width: 12px
          height: 12px
          margin-right: 4px
          background-size: 12px 12px
          background-repeat: no-repeat
          &.decrease
            bg-image('decrease_1')
          &.discount
            bg-image('discount_1')
          &.guarantee
            bg-image('guarantee_1')
          &.invoice
            bg-image('invoice_1')
          &.special
            bg-image('special_1')
        .text
          vertical-align: top
          line-height: 12px
          font-size: 10px
    .support-count
      position: absolute
      right: 12px
      bottom: 14px
      min-width: 24px
      height: 24px
      line-height: 24px
      padding: 0 8px
      background-color: rgba(0, 0, 0, .2)
      border-radius: 14px
      text-align: center
      .count
        font-size: 10px
      .icon-keyboard_arrow_right
        line-height: 24px
        font-size: 10px
        margin-left: 2px
  .bulletin-wrapper
    position: relative
    height: 28px
    line-height: 28px
    background-color: rgba(7, 17, 27, .2)
    padding: 0 22px 0 12px
    white-space: nowrap
    overflow: hidden
    text-overflow: ellipsis
    .bulletin-title
      display: inline-block
      vertical-align: top
      margin-top: 8px
      width: 22px
      height: 12px
      bg-image('bulletin')
      background-size: 22px 12px
      background-repeat: no-repeat
    .bulletin-text
      vertical-align: top
      margin: 0 4px
      font-size: 10px
    .icon-keyboard_arrow_right
      position: absolute
      right: 12px
      line-height: 28px
      font-size: 10px
  .background
    position: absolute
    top: 0
    left: 0
    width: 100%
    z-index: -1
    filter: blur(10px)
  .detail
    overflow: auto
    position: fixed
    top: 0
    left: 0
    right: 0
    bottom: 0
    background-color: rgba(7, 17, 27, .8)
    z-index: 100
    backdrop-filter: blur(10px)
    .detail-wrapper
    // 如果没有这个限制的话，由于没有高度设置，高度由内容撑开，下面的关闭按钮会向上移动
      width: 100%
      min-height: 100%
      .detail-main
        margin-top: 64px
        padding-bottom: 64px
        .name
          line-height: 16px
          font-size: 16px
          font-weigth: 700
          text-align: center
        .star-wrapper
          margin-top: 16px
          padding: 2px 0
          text-align: center
        .title
          display: flex
          width: 80%
          margin: 28px auto 24px auto
          .line
            flex: 1
            position: relative
            top: -7px
            border-bottom: 1px solid rgba(255, 255, 255, .2)
          .text
            padding: 0 12px
            font-size: 14px
        .supports
          width: 80%
          margin: 0 auto
          .support-item
            padding: 0 12px
            margin-bottom: 12px
            font-size: 0
            &:last-child
              margin-bottom: 0
            .icon
              display: inline-block
              width: 16px
              height: 16px
              vertical-align: top
              background-size: 16px 16px
              background-repeat: no-repeat
              &.decrease
                bg-image('decrease_2')
              &.discount
                bg-image('discount_2')
              &.guarantee
                bg-image('guarantee_2')
              &.invoice
                bg-image('invoice_2')
              &.special
                bg-image('special_2')
            .text
              vertical-align: top
              display: inline-block
              font-size: 12px
              line-height: 12px
              margin: 2px 0 0 6px
        .bulletin
          width: 80%
          margin: 0 auto
          .content
            padding: 0 12px
            line-height: 24px
            font-size: 12px
    .detail-close
      position: relative
      width: 32px
      height: 32px
      margin: -64px auto 0 auto
      font-size: 32px
      // sticky footer的通用写法，如果上面部分有浮动，则也可以解决
      clear: both
</style>
